Current Sensing Transformers (CT)
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Current Sensing Transformers
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Our standard Current Sensing Transformers include window sizes up to 350 square inches with current ratings up to 10,000A and current ratios from 10:1 to 6000:5. Select models are UL recognized for indoor applications. See the selection table below for more details.
Advantages of using Bicron Current Sensing Transformers:
Bicron’s proven standard Current Sensing Transformer designs are great starting points for new application requirements. Our “modified standard” program permits us to substantially modify our standard electrical and mechanical specifications without incurring the cost of new product development. This allows you to quickly optimize your system at lower cost with our proven technology.
Custom Current Transformers
Our custom Current Transformer designs are developed to meet unique customer applications. Our extensive experience includes custom models for high voltage applications such as power distribution sensing and power harvesting. We also offer value-added assembly.
Please use our Current Transformer Design Worksheet to describe your application requirements for a Bicron modified standard or custom designed Current Transformer.
50Hz to 60Hz 3-phase high voltage power
harvesting & current sensing transformer assembly.
Used for switchgear, power distribution monitoring.
Visit our Technical Guide for Current Transformers webpage which provides fundamentals for Current Transformer design including technical terminology.
Selection of Core Materials and Models
Our preferred core material for standard current sensing transformers is Bicron’s Special Permeability (SP), with proven performance features for accuracy, linearity, low-end resolution and temperature sensitivity. We also offer current sensing transformers made with Grain Oriented Silicon Steel (GOSS), providing good performance at a lower cost. Bicron’s preferred SP and GOSS materials offer advantages over other typical core materials as represented in the following comparison chart:
Core material considerations:
Advantages of using Bicron Current Sensing Transformers:
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Bicron’s proven standard Current Sensing Transformer designs are great starting points for new application requirements. Our “modified standard” program permits us to substantially modify our standard electrical and mechanical specifications without incurring the cost of new product development. This allows you to quickly optimize your system at lower cost with our proven technology.
Custom Current TransformersOur custom Current Transformer designs are developed to meet unique customer applications. Our extensive experience includes custom models for high voltage applications such as power distribution sensing and power harvesting. We also offer value-added assembly.
Please use our Current Transformer Design Worksheet to describe your application requirements for a Bicron modified standard or custom designed Current Transformer.
50Hz to 60Hz 3-phase high voltage power
harvesting & current sensing transformer assembly.
Used for switchgear, power distribution monitoring.
Visit our Technical Guide for Current Transformers webpage which provides fundamentals for Current Transformer design including technical terminology.
Selection of Core Materials and Models
Our preferred core material for standard current sensing transformers is Bicron’s Special Permeability (SP), with proven performance features for accuracy, linearity, low-end resolution and temperature sensitivity. We also offer current sensing transformers made with Grain Oriented Silicon Steel (GOSS), providing good performance at a lower cost. Bicron’s preferred SP and GOSS materials offer advantages over other typical core materials as represented in the following comparison chart:
Core material considerations:
| Preferred Core Materials | Advantages |
| Special Permeability (SP) | Improved performance over wide temp; -35°C - +80°C Improved low level performance after exposure to DC shock Minimal Phase Angle (Iprimary VS Isecondary) typically less than 1% Excellent coupling of primary and secondary currents |
| Grain Oriented Silicon Steel (GOSS) | Provides high output voltages suitable for self-powered sensing |
Bicron Current Sensing Transformers - Selection Guide click here to view as pdf
Measurement: inches (mm) Data subject to change *UL recognized for indoor applications Links for Datasheets appear if availablePinout Options:
Bicron Current Sensing Transformers Performance Characteristics (click here to view PDF):
